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Insect baculovirus pesticides in dosage form of water dispersible granule and preparation

A baculovirus, dispersible particle technology, applied in pesticides, botanical equipment and methods, biocides, etc., can solve the problem that the dispersibility of virus polyhedra is not as good as that of suspending agents, and the field application effect is lower than that of suspending agents and suspending agents. It is inconvenient for preservation and transportation, and achieves the effect of less field dosage, strong anti-ultraviolet ability and stable product quality

Active Publication Date: 2008-10-08
INST OF ZOOLOGY CHINESE ACAD OF SCI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Wettable powders and suspensions have their own advantages and disadvantages in transportation and application: for example, suspensions are not convenient for storage and transportation, and wettable powders are superior to suspensions in maintaining the biological activity of viruses, but because the preparations are diluted with water when applied in the field In some cases, limited by the technical level of processing, the dispersibility of virus polyhedrons is not as good as that of suspension concentrates, resulting in a lower field application effect than suspension concentrates

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 500 billion PIB / gram of cotton bollworm nuclear polyhedrosis virus powder 2Kg, add sodium dodecylbenzene sulfonate (also can be sodium dodecyl laurate) 10Kg, lignin calcium 10Kg, urea 5Kg, fluorescence increase Whitening agent (also can be nano zinc oxide) 2Kg, kaolin 66Kg, carboxymethyl cellulose 5Kg. The pulverizer mixes and pulverizes to become mother powder. The mother powder is further pulverized with a jet mill to make the particle size less than 10 μm, and then fully mixed in a mixer. After being granulated by a fluidized bed, it is vacuum-dried, and the drying temperature is controlled at 30°C. When the moisture content is lower than 5%, the material is taken and sieved, and the finished product rate is 95%. Promptly obtain 95Kg of 10,000,000,000 PIB / gram of cotton bollworm nuclear polyhedrosis virus water-dispersible granules product, and need 100,000,000,000 PIBs of cotton bollworm virus to prevent and control cotton bollworm according to every mu of cotton ...

Embodiment 2

[0039]200 billion PIB / gram of Spodoptera litura nuclear polyhedrosis virus (Spodoptera litura nuclear polyhedrosis virus) powder 15Kg, add sodium lauryl sulfate 15Kg, tea saponin (also can be lignin calcium) 12Kg, ammonium sulfate (also Can be sodium bicarbonate) 15Kg, nano titanium dioxide 5Kg, bentonite 32Kg, soluble starch 6Kg. The pulverizer mixes and pulverizes to become mother powder. The mother powder is further pulverized with a jet mill to make the particle size less than 10 μm, and then fully mixed in a mixer. After extrusion granulation, vacuum drying, the drying temperature is controlled at 30°C. When the moisture content is lower than 5%, the material is taken and sieved, and the finished product rate is 95%. Promptly obtain 95Kg of 30,000,000,000 PIB / gram Spodoptera litura nucleopolyhedrosis virus water dispersible granules product, calculate by the Spodoptera litura virus control Spodoptera litura virus that needs 60,000,000,000 PIBs per mu of vegetable field,...

Embodiment 3

[0042] 600 billion PIB / gram of Plutella xylostella granulosis virus (Plutella xylostella granulosis virus) former powder 10Kg, add tea saponin 15Kg, starch 5Kg, optical brightener 15Kg, bentonite 49Kg, polyvinyl alcohol 6Kg. The pulverizer mixes and pulverizes to become mother powder. The mother powder is further pulverized with a jet mill to make the particle size less than 10 μm, and then fully mixed in a mixer. After extrusion granulation, freeze-drying in vacuum. After the drying is finished, the material is taken and sieved, and the finished product rate is 90%. Promptly obtain 60,000,000,000 PIB / gram Plutella xylostella granule virus water dispersible granule product 90Kg, by the Plutella xylostella virus control diamondback moth that needs 600,000,000,000 PIB per acre of vegetable field, then its field consumption is 10 grams / mu.

[0043] During field control, use 10 grams of water-dispersible granules of 60 billion PIB / gram per mu of vegetable field, and spray with 3...

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PUM

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Abstract

The invention relates to a water dispersion granula preparation formulation of an insect baculovirus pesticide and a preparation thereof, which is a solid water dispersion granula preparation formulation and comprises 10-500 billion PIB / g of the insect baculovirus raw powder and accessory agents, the accessory agents comprise vector, dispersant, wetting agent, disintegrant, light protective agent and bond. The proportion of weight portion of every component is as follows: 1 to 50 portions of the insect baculovirus raw powder, 1 to 70 portions of the vector, 1 to 20 portions of the dispersant, 0 to 20 portions of the wetting agent, 1 to 20 portions of the disintegrant, 0.5 to 20 portions of the light protective agent and 1 to 20 portions of the bond. The preparation method is that the insect baculovirus raw powder and the accessory agents are mixed by certain proportion to be crushed by airflow for granulating and drying to obtain the water dispersion granula preparation formulation of the insect baculovirus pesticide which can be used separately and also can be used by combing with chemical pesticide. The water dispersion granula preparation formulation of the insect baculovirus pesticide has the advantages of little pollution caused by producing and processing process, long shelf life, stable product quality, good dispersibility, easy storage, convenient transportation, extremely low dosage and high virus content, which has significant meaning for preventing and curing insects in agriculture and forestry.

Description

technical field [0001] The invention relates to an insect baculovirus insecticide and a preparation method thereof, in particular to an ultra-low dosage and high content water-dispersible granule type insect baculovirus insecticide and a preparation method. Background technique [0002] The main hosts of Baculoviridae viruses are insects, which can cause the host insects to suffer from baculovirus diseases and die, and can be made into insecticides to control agricultural and forestry pests. Insect baculovirus insecticides (referred to as virus insecticides) are a class of pure natural, green and environmentally friendly biological pesticides. At present, the amount of chemical pesticides used per unit area is getting higher and higher, and the harm to the environment, non-target animals, biodiversity and humans is becoming more and more serious. A large number of highly toxic and high-residue pesticides are restricted in production, Prohibition, restriction and prohibition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N63/00A01N25/08A01N25/12A01P7/04A01N25/30
Inventor 吴学民秦启联程清泉张爱君张寰苗麟李瑄殷珍仙
Owner INST OF ZOOLOGY CHINESE ACAD OF SCI
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